3  * SPDX-License-Identifier: Apache-2.0
19 	const struct gpio_dt_spec *gpios;  member
33 static int regulator_gpio_apply_state(const struct device *dev, uint32_t state)  in regulator_gpio_apply_state()  argument
35 	const struct regulator_gpio_config *cfg = dev->config;  in regulator_gpio_apply_state()
37 	for (unsigned int gpio_idx = 0; gpio_idx < cfg->num_gpios; gpio_idx++) {  in regulator_gpio_apply_state()
39 		int new_state_of_gpio = (state >> gpio_idx) & 0x1;  in regulator_gpio_apply_state()
41 		ret = gpio_pin_get_dt(&cfg->gpios[gpio_idx]);  in regulator_gpio_apply_state()
43 			LOG_ERR("%s: can't get pin state", dev->name);  in regulator_gpio_apply_state()
48 			ret = gpio_pin_set_dt(&cfg->gpios[gpio_idx], new_state_of_gpio);  in regulator_gpio_apply_state()
50 				LOG_ERR("%s: can't set pin state", dev->name);  in regulator_gpio_apply_state()
59 static int regulator_gpio_enable(const struct device *dev)  in regulator_gpio_enable()
61 	const struct regulator_gpio_config *cfg = dev->config;  in regulator_gpio_enable()
64 	if (cfg->enable.port == NULL) {  in regulator_gpio_enable()
68 	ret = gpio_pin_set_dt(&cfg->enable, 1);  in regulator_gpio_enable()
70 		LOG_ERR("%s: can't enable regulator!", dev->name);  in regulator_gpio_enable()
77 static int regulator_gpio_disable(const struct device *dev)  in regulator_gpio_disable()
79 	const struct regulator_gpio_config *cfg = dev->config;  in regulator_gpio_disable()
81 	if (cfg->enable.port == NULL) {  in regulator_gpio_disable()
85 	return gpio_pin_set_dt(&cfg->enable, 0);  in regulator_gpio_disable()
88 static unsigned int regulator_gpio_count_voltages(const struct device *dev)  in regulator_gpio_count_voltages()
90 	const struct regulator_gpio_config *cfg = dev->config;  in regulator_gpio_count_voltages()
92 	return cfg->states_cnt;  in regulator_gpio_count_voltages()
95 static int regulator_gpio_list_voltage(const struct device *dev, unsigned int idx, int32_t *volt_uv)  in regulator_gpio_list_voltage()
97 	const struct regulator_gpio_config *cfg = dev->config;  in regulator_gpio_list_voltage()
99 	if (idx >= cfg->states_cnt) {  in regulator_gpio_list_voltage()
100 		LOG_ERR("%s: can't get list voltage for idx %u", dev->name, idx);  in regulator_gpio_list_voltage()
101 		return -EINVAL;  in regulator_gpio_list_voltage()
104 	*volt_uv = cfg->states[idx * 2];  in regulator_gpio_list_voltage()
108 static int regulator_gpio_set_voltage(const struct device *dev, int32_t min_uv, int32_t max_uv)  in regulator_gpio_set_voltage()
110 	const struct regulator_gpio_config *cfg = dev->config;  in regulator_gpio_set_voltage()
111 	struct regulator_gpio_data *data = dev->data;  in regulator_gpio_set_voltage()
117 	for (unsigned int state_idx = 0; state_idx < cfg->states_cnt; state_idx++) {  in regulator_gpio_set_voltage()
118 		if (!IN_RANGE(cfg->states[state_idx * 2], min_uv, max_uv) ||  in regulator_gpio_set_voltage()
119 		    cfg->states[state_idx * 2] >= best_voltage) {  in regulator_gpio_set_voltage()
123 		best_voltage = cfg->states[state_idx * 2];  in regulator_gpio_set_voltage()
124 		best_state = cfg->states[state_idx * 2 + 1];  in regulator_gpio_set_voltage()
128 		LOG_ERR("%s: can't find voltage is states", dev->name);  in regulator_gpio_set_voltage()
129 		return -EINVAL;  in regulator_gpio_set_voltage()
132 	if (best_voltage == data->current_volt_uv) {  in regulator_gpio_set_voltage()
141 	data->current_volt_uv = best_voltage;  in regulator_gpio_set_voltage()
145 static int regulator_gpio_get_voltage(const struct device *dev, int32_t *volt_uv)  in regulator_gpio_get_voltage()
147 	const struct regulator_gpio_data *data = dev->data;  in regulator_gpio_get_voltage()
149 	*volt_uv = data->current_volt_uv;  in regulator_gpio_get_voltage()
162 static int regulator_gpio_init(const struct device *dev)  in regulator_gpio_init()
164 	const struct regulator_gpio_config *cfg = dev->config;  in regulator_gpio_init()
169 	for (unsigned int gpio_idx = 0; gpio_idx < cfg->num_gpios; gpio_idx++) {  in regulator_gpio_init()
170 		if (!gpio_is_ready_dt(&cfg->gpios[gpio_idx])) {  in regulator_gpio_init()
171 			LOG_ERR("%s: gpio pin: %s not ready", dev->name,  in regulator_gpio_init()
172 				cfg->gpios[gpio_idx].port ? cfg->gpios[gpio_idx].port->name  in regulator_gpio_init()
174 			return -ENODEV;  in regulator_gpio_init()
177 		ret = gpio_pin_configure_dt(&cfg->gpios[gpio_idx], GPIO_OUTPUT);  in regulator_gpio_init()
179 			LOG_ERR("%s: can't configure pin (%d) as output", dev->name,  in regulator_gpio_init()
180 				cfg->gpios[gpio_idx].pin);  in regulator_gpio_init()
185 	if (cfg->enable.port != NULL) {  in regulator_gpio_init()
186 		if (!gpio_is_ready_dt(&cfg->enable)) {  in regulator_gpio_init()
187 			LOG_ERR("%s: gpio pin: %s not ready", dev->name, cfg->enable.port->name);  in regulator_gpio_init()
188 			return -ENODEV;  in regulator_gpio_init()
191 		ret = gpio_pin_configure_dt(&cfg->enable, GPIO_OUTPUT | GPIO_OUTPUT_INIT_LOW);  in regulator_gpio_init()
193 			LOG_ERR("%s: can't configure enable pin (%d) as output", dev->name,  in regulator_gpio_init()
194 				cfg->enable.pin);  in regulator_gpio_init()
206 	DT_FOREACH_PROP_ELEM(DT_DRV_INST(inst), gpios, REG_GPIO_CONTEXT_GPIOS_SPEC_ELEM)
209 	.gpios = (const struct gpio_dt_spec[]){REG_GPIO_CONTEXT_GPIOS_FOREACH_ELEM(inst)},         \
210 	.num_gpios = DT_INST_PROP_LEN(inst, gpios)